A-LevelChemistryChemical energetics9701/12 · Oct/Nov 2019 · Q341 Mark
The reaction pathway diagram for a reversible reaction is shown. [Figure 34.1] Which statements are correct? 1 The enthalpy change for the backward reaction is –20 kJ mol⁻¹. 2 The forward reaction is endothermic. 3 The activation energy for the forward reaction is +70 kJ mol⁻¹.
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A1, 2 and 3 are correct
B1 and 2 only are correct
C2 and 3 only are correct
D1 only is correct
✓ Correct answer
A: 1, 2 and 3 are correct
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